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回顾了铝冶金工业的发展史，通过对该融盐体系物理、化学性质的描述，提出了现代冰晶石氧化铝融盐体系基本理论的某些不足；将胶体的概念首次系统地引入该融盐体系中；详细论述了该融盐体系中氧化铝、金属态铝、炭粒等溶胶生成的机理，并用胶体理论解释了该融盐体系中的一些物理、化学性质，如氧化铝絮凝、融盐电导率下降等，同时阐述了胶体研究在冰晶石氧化铝融盐体系的意义和研究方向。
The development history of aluminum metallurgy industry was reviewed. Based on the description of physical and chemical properties of the molten salt system, some shortcomings of the basic theory of modern cryolite alumina saltification system were put forward. The concept of colloid was firstly systematically introduced into the molten salt In this paper, the mechanism of the formation of sols such as alumina, metallic aluminum and carbon particles in the molten salt system is discussed in detail. Some physical and chemical properties of the molten salt system, such as alumina flocculation, Conductivity decline, at the same time describes the significance of colloidal research in cryolite alumina salt system and research direction.